Not many Sports Illustrated swimsuit models can say they’ve performed with a rock legend. But Damaris Lewis has been serving as a backup dancer and muse for Prince since the spring. The 5-foot-10-inch Brooklyn native has studied ballet, jazz and African dance since she was 7 and attended Fiorello H. LaGuardia High School of Music & Art, which inspired the movie “Fame.” Lewis met the Purple One after she was cast to appear in a video clip for him. Prince then asked her to go on tour with him. “Four days later, I was going to Australia,” Lewis told us. She then traveled to Chicago and Los Angeles with the superstar and also performed with him on “Jimmy Kimmel Live.”